Bowling pin rejuvenator



Dec. s, 1932.y

J. C. TAYLOR BOWLING PIN REJUVENATOR Filed Feb. l1, 1931 INVENTOR 'tylar ATTORNEY Dec. 6, 1932;

J. c. TAYLOR 1,890,422

BOWLING PIN REJUVENATOR Filed Feb. 11. 1951 f\ v 5 Sheets-Sheet 2 WITNESS ga N . NVENTOR l BY fm va.

- ATTORNEY Dec. 6, 1932. J. c. TAYLOR 1,890,422

lBOWLING PIN REJUVENATOR Filed Feb. 11,l 1931 5 sheets-sheet s az M5@ lNvENToR f I o. Taymf,

"gg/ Y Bfmro.

ATTORNEY WITNESS J. c. TAYLOR 1,890,422

, BOWLING RIN REJUVENATOR Filed Feb. 1 1. 1931 5 4sheets-sheet 4 T 'ra wxTNEss y NVE Ton mlm I "gp" V 4 i I '4 1 L BY WIM@ 2.9 l l* ATTORNEY BOWLING PIN REJUVENATOR Filed Feb. 11, i951 5 sheets-Sheet 5 INVENTOR [iTa/gar;

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ATTORNEY Patented Dee. e, 1932 BOWLING BINREJUVENATOR j Y l Application med February 11.1931.'V serial no. 515,064.-

`Fig.,4`isabottomplanview; i j ,Y vFig`.-`5jis averticalsectional view taken ,ort the line -75 of Figfl';

My invention relates to machines for re-` juvenating worn bowling pins and restoring them toV regulation size and proportions.,

When bowling pinsleave the factory there 5 Vis af3/fe,'bore centrally of the'bottom of the pins which is countersunk to a da'metercfl 1%. The Voutside diameter-.lof the pins at the bottom is approximately one inch greater than thediarneter of the central countersink l0 so that a circular Hat bearing rim is formed andupon which Ythe pin rests when stand ing.` A `During' continued use of thepins this bearing rim becomes worn and untrueand it is a primary purpose of this invention to resides of the pin to their true proportions.

i Another object of the invention is to'pr'o-:l vide .in a simple and compact apparatus with meansfor restoring the bore andV counter` sinkvin the bottom of the pin to the correct size and with means' for trimming'the bot# tom and lower portion of the sides ofthe 'pin y to restore the pin to the correct proportions'.`

A further object of the invention is to provide an apparatus Vwhich ,may bev readily adapted tohoperateupon either d'uclrpinslor tenpins. f 1

A still further object of the inventionis to provide an apparatus in whichthe pins willl` be automatically alined for each operation and one which may be satisfactorily operated by a relatively unskilled operator.

AL- still further object is to provide an ap Y y paratus which is simple and inexpensive in construction, one in which the yparts lmay be readily disassembledfor repair or replacement, and one Vin which fthe-parts. areunot likelyto become easily broken or out ofV 'order. 40 Y Other important objectsand advantages of the invention will'become apparent .dur-` ing the course of the following detailed description when read in conjunction with; the l accompanying drawings` which form a part l of this specification andin which: y *Figure lis a side elevation oflthefinvention;` f Fig. l2 is a top plan view thereof; r p Fig." 3 is afragmentary View, partially in jside elevation and partially insection'; 1

cee einig. 2';

storethebottom and therlowe'r portion of 'the Fig. 6 is segmental View .taken Qn #heilige-c rl l" "'Figf 7- is "an enlarge@ dtail 'View eekenget: the line 7-7 of Fig'. y if l Fg- 8 s a vertical sectional.View takepn, the' line Se-s of Fig,1 .i i i Fig.-9 is a sectional view takenon theline 0i I 9 9 of Fig. 1i; l 1

-,Fig. 10 isa sectional view taken; onfthe line" 10`10ofFig.1; 'j f' f il carriage'employedgin the-intention;` i I Fig. `12 isa perspective'view of anoperate ing handle forsaid carriage; j l, y Y

'Figxl isfaiperspective view of theendfv .e

cutterholder; andy f Fig. 14 is `a vperepeaive .view rei;Y uneeide 7'0" cutter holder. t

Referring now to the drawings in detail,A in` which like numerals refer' to likel parts throughout the several views, 15 indicates a` ,Y Vbase upon which the operatingpartsare A mounted. The base may be formedlinthe shape of an inverted channel vmember{so as toi' form side walls 16 and 17 "and endwalls 18` .and 19 with a' flattop 20 joining these walls 1 and extending therebetween. Thebottomfof 80,"

the baseismachined oiat either end ftofpro-j vide bearing points 21 lwhich rest upon a suitv 'able support orfwork bench.- lBoltholes 22 areprovidedin the bearing portions {2l-pfor-l the reception of anchoring bolts (not shown);y 85 Asuitable electricfmotor 23f-ismountedupon one end of the baste 15, as at 24,'the ba'sefk i i beingl machined at this' point to provide ai suitable 'seat for the 'motor which isanchored to the base by means of bolt's'25."A The? motor .'90 is mounted so that its rotor 'shaft is.disposed'v parallel with th'e longitudinal` center' line of the base'l andis vin vertical'alinenient'therewith. The left hand fendy of themotorfshaft extends beyond-'thema leefuie bese and ie 95 provided' vwitlia chuclr26 which s uppcrtsfa" boring drill 27` and a counte'rsinking reamer. 28 as'clearly shown `in, Figs. 1,` 2 vand.

Anfextension bar 29 projects" lon'gtlldi#-"-..-V j muy from eterea end ef .the'beee 15; The 100.

Fig. 11 is a perspectivesview of aslidingf y' i Abi-*ace 33 extends from-the .end wall `18 just belowv the ypointv of' entranceof the exltension 29, beingV secured to said endI wall' by bolts 34.` Thefbrace 33. is in longitudinal' alinement with' the extension bar 29 and lis'placement thereof. l

serves to prevent sagging of theunsu-pported end of the bar as well as Vto preventlateral A pair of bowling pinsupporting members v if 35.-,and"36.are slidably ydisposed on they extension bar 29. The member 35,ineludes an f upstanding ring 37,.-the bore of whichv is centeredfwith respect tothe drill27 andis` shaped to snugly receive theftape'redl lower end ofV a bowling pin 38.y yThe member 36 is i formedzwith a U-shapedfcradle 39 which is forwardly of the motor Y 23V isa-sliding car#v riage 0r tablef46. The. under face of th e table46'isprovided with a Vlongitudinally ex,-

5 0" y* is provided Vwith machined ribs y5,() borderingV adapted to support 'therhead offthe pin vA;- circular rodi40, securelyfastened within Y a bore in tliemember 35 extends fromthe same through a bore nin the member36.' A set screwv -4l1in the member 36V may be tightened to lock this member vto the rod 40, therebyV permitting locking'of the members 35 and i 36 in spaced relation.

A coil spring 42fhaving one end secured Y tothe under face ofthe end of the brace 33 as at-43 and the other end secureditotheunder-faceof `the member 35 as at 44, serves to normally urge the member 35 away from the motor 23. Upst'anding lugs45 formed` on either-side-ofrthebracek 33 serve as stops- 0' to limit the outward travel of the member 35,

The upper surfaceQO of the baserl is machined downv so as to` present a Vsmooth plane surface. Mountedupon, the base just tending rib .or proj ection'" 47' fwliieh proj ects intol and has a. snug 'sliding litv within e a rcen trallongitudinally extending slot 48 *formed* in the-'top 20, yThe walls of the vslot 48 are machined'V and the under facejof'othe; top 20 theedgesof the slot .48, the ribs150 forming 'bearings for 'transversely extending gibs 5l which7 are secured tothe under face of therib 47- by headed bolts 52. The` gibs '51j serve to/slidably lock the table 46 kto the Vbase l5.r

mountedupon the opposite endof. the base- 15. The tail stock 54 has a depending tongue on ribj which extends into a longitudinalsl'ot The upper end of the stock 54 ina sleeve which is centrally alined with Y the spindle 53 `carried by the motor shaft,"V A tail'spindle 'l-isv carried V'within the -bore i of the sleeve 60 and is mounted for .projec-l v tion and retractiony toward 'and from ythe stock is Yheld. from displacement by-V a kgib 57 which is secured tothe under face of the l l l rib55 by meansfof a screw bolt 58. The

wings of the gib 57 bear against machined 'ribs 59 formed with the top 20 and bordering Y V'the slot 56. Tightening of the bolt 58 results in locking the stock .54, any desired distance from the' head stock.

motor. For the purpose of accomplishing this longitudinal. movement,` the. spindle 61j is Vformed on one side with aplurality of'gear Y teeth-62 vforming a rack which. srengaged V by,V a pinion 63 carried on a vertical shaft 641v whichdn turnl is .journalledy in bearings Y65.

terminates formed Vwiththestock54;Y If-he pinion.ex.

tends through an. opening. 66 in `the side` of f,

.the sleeve 6 .l i v The pinionf63 is keyed or otherwise secured for rotation with-the shaft 64which shaft extends above the upper bearing 65. and "is providedmwithy an operating handle 67.7 ItV will be evident that movement of the handle 67 will. result in rotation of. the pinion 63- and a consequent longitudinal movementY of the spindleo6l. For the purpose of` locking the spindle 6l` inposition after adjustment, l *l one end of the sleeve 60 is split andprovided with ears 68 which are adapted to be drawn together by a clamping screw69 operated by. Y

a hand lever 7 0.y Movement of the handle`70 in a clockwise direction results inelampingV` together fof the ears 68 anda tightening of the split end of the sleeveV upon vthe spindle.` y

,It will be noted that the'spindle 6l normally projects a considerable distance beyond the endof the 'sleeve 60 toward thevmotor23 and `that this projecting end is providedwith a pointedcenter 7l` which enga'gestheend of the'worli, which in this case is thehead of a bowling pin. When the pins come from the. ffactory rthere is no center mark inthe head of' the'pin, therefore in order to correctly centertheheadlof the pin, I haveprovided a centering sleeve 7 2 whifehfis slidably disposed I on the projecting end ofthe spindle 61. The

sleeve 72:is provided with'a'lared conical,

endV 73.

When it'isdesir'edito mount a pin be- Theright, hand endiof the rotor .Shaft of tween the head and tail stocks, the bottom of the motor 23 extends partially `overthe tabley A46 and. terminatesin spindle 53 adapted' to*l ftwithin the borein; the bottom of the. bowlthepin is v'inserted on vthe spindle 53,'v said spindle occupying Jthe center bore in the bottom of the pin., With the 'lower end ofthe pin-thus supported-the head is brought into approximate alinement with'the spindle center 7ltvthespindle being inretractedpositionl The sleeve72 is then slid lforwardlytolengage the `cone 7 3 with the head of the pin,4 thereby centering said head with respect to the center 71. i

The lever 67 is then turned in a clockwise direction to project the spindle 61 toward the pin head and engage the center 71 in the'end thereof, this operation also forcing the bottom of the pin fast upon the spindle 53. A pull on the lever clamps the spindle and locks the same in this projected position. The cone 7 3 may now be disengaged from the pin head as the pin is firmly held between the spindle 53' and center 71. Y

After the pin is thus Vmounted it is ready for the trimming operation. l

As beforestated, thetable 46 is slidably mounted upon the base 15. In order to providefor sliding adjustment of the table 46, an operating lever 74, shown in detail in Fig.

12 is pivotally mounted by means of a bolt 7 5 on the under side of the top 2O of the base 15. The pivot bolt 7 5 passes through a bore 76 in a boss 77 formed at the end of Said' lever 74. The pivotbolt Vthreads'into a boss 78 formed at one side ofthe slot 48 approximately midway of the ends ofthe ribs 50 and the lever extends transversely across the slot 48 and through an elongated opening 79 in the side 16 of the base, the freeend of the lever `being formed with a hand grip 80. The lever 74 is pivotally secured to the under face of the rib 47 ofthe table 46 by means of a pivot bolt 81 which extends through a slightly elongated slot 82 formed in a Vboss -83 which is provided on the lever 74 a short distance from the boss 77. It will be evident that movement of the lever'7 4 about the pivot 7 5 will result in a corresponding reciprocal motion of the table 46. f 1 Y A transversely movable end cutter 84 is mounted upon an upstanding arm 85 pivotally supported at its lower end between upstanding bracket ears 86 by means of a pivot 'pin 87. The ears 86 are bolted to the table 46 at one side thereof and adjacent the motor 23.

. The upper end of the arm 85 is provided with a handle 88 to be grasped by the operator in moving the cutter 84 to the Work and the lower end of the arm is provided with arearwardly extending projection or stop 89 adapted to contact with the table '46 to limit rearwardv cutter arm is provided with a perforated.

boss 96 at one end thereof and with a-second perforated boss 97 spaced from said end; The arm 95 is pivoted to the extension 92the pivot bolt 98 passing through bosses 97and 9 4 when yone size pin is being 'operated upon and through bosses VY96 Vand 93 when the other size I pin is being treated.V

Thearm 95 has a handle formed the i free end thereof and'isformedfwith .an'upstanding cutter support 100 intermediate of 'f its ends. A suitable cutter 101 is securedtothis projection, ,said cutter being utilized to trim the lower portion of the sides of1the' pin.

A depending bearing'portion 102v also formed with said *armv 95 is adapted'to bear against a milledcurvedtrack 103 Ion the plate `46so as tosteady the arm during Vthe-cutting op-"" Y eration.

In operation, a

Fig. 1;. The operator, grasping the headfof the pin" and holding the same in theCradleSQ urges the pin towards the drill 27. and reamer` 1 28 the slidingr supports 35V and ,36 f moving 1 therewith against the actionof the springf42.

When the bottom ofthe lpinhasbeen drilled and-countersunk to the proper depth, Vthe pin `is removedand mounted between thehead spindle 53 and tail spindle 61 asillustratedvin full lines in Figs. 1 `Zand lThe table 46 is first adjusted to the proper position by means and the end cutter84 is'then brought across of lever 7 4. and handle 80,'the motor started, l

the lowerfend of the pin to even of the bottom v thereof. The handle 99 is thenswung tothe Y right to bring the cutter' 101.` into operationl to trim the lower sides of the pin tothe proper dimensions. The cutters vhaving been set by gauge, the operation may readily be performed by a relatively inexperiencedand unskilled person. v

Although a willbe understood that various changes in i' the details'of construction may be madewith out departing from the spirit'ofthe invention as defined `by t 'e appended claims.`

lIclaim: Y 1. In al device head spindle carried VbyA the motor. shaft, a

relation thereto, said spindles gto-operating of the Ycharacter described, *a base, an electric motormount'ed thereon, a j v tail spindle 'mounted on said base inopposed to mount said pin, acarriagemounted on said Y base for slidingir adjustment Vbetween said spindles, a cutter mounted on Vsaid'carriage `for movement transversely of the baseof said pin, a second cutter mounted on said table for movement in a curved path longitudinally of said pin and in'lixed relationship `to said first cutter.

head Vspindle carried by Athe motor shaft, a tail spindle mounted on said basein opposed relation thereto, said spindles Vcojo'perating "125 i 2 In a device ofthe character described, a base, an electric motorvmounted thereon, aI

preferred embodiment of the V.inventionV has been shown Aand described; it

to j mount said pin, a' carriage mounted `on y sald base for slidlng'adjustment between-said spindles., a cutter mounted on'said.` carriage l for movement transversely of thebase'ofasaid pin', the carriageV beingf provided Withe a lat- 5 leral projection, Ian' arm pivotally mounted on 'the projection,- a second cutter` mounted on `the arm, andswingable with the'arrnin a ,t cnrved path longitudinallyof the' pin and in fixed relationship With saidVV first-mentioned cutter.' j v t 3.' In a device of the characterfdescrbed, a

Vbaee, an electric 'rlnotorfinounted' thereon, aY

vhead spindle rcarried by'themotor shaft, a tail Spindle'inounted on'said base in Opposed rela- Y tion" thereto, said spindle co-operating to 'i inount saidapin, acurriage mounted on Said base for sliding adjustment between vsaid spindies, al cutter mounted Y'on said carriage; for Vmovement transversely of the base of said pin, 20 "the carriage having a v4lateral projection, an arm, Ameans on` the arin and the projeetion'for i' providing'a plurality-of'prvotal-connections'v betweenfthe `*a'ri'n and the proj e'ction,` a second cuttencarriedbythe arm for movement in a' curved 'xpath longitudinally of the' pin. and Y in ixedfrelationship to the first-mentioned l cutter,the`plurality of Inountings providing for various spacingsof the cutterfrom the .pin When different pins are operated on. j JOHN COOPERv TAYLOR. 

